Do cranberries grow in water or do they flood the bogs to help pick them?

Cranberries grow on low-lying vines in sandy, acidic soil, primarily in bogs. When it's time to harvest, growers flood the bogs with water, which causes the cranberries to float to the surface due to their air-filled chambers. This makes it easier to collect them using specialized equipment. So, while cranberries do not grow in water, flooding is a crucial part of the harvesting process.